They was a first person shooter originally being developed by Metropolis Software. However, the project was put on hold (but not cancelled) in early 2010 after the company was acquired by CD Projekt RED.
They is set in 2012 and follows the story of an English soldier during an alien invasion. The aliens in the game, called Phantoms, control robots which they use to conduct their offensive.
Here you will find a list of all achievements and trophies available in the game.
